Expansion of Sum_{k>=0} k * x^k/(1 + k^2 * x).

A349859

Expansion of Sum_{k>=0} k * x^k/(1 + k^2 * x).

Terms

    a(0) =0a(1) =1a(2) =1a(3) =-4a(4) =8a(5) =57a(6) =-771a(7) =4168a(8) =22504a(9) =-943255a(10) =13349105a(11) =-48905364a(12) =-3284972544a(13) =117005181841

External references